Projection system

Claim 1

A SYSTEM FOR SIMULTANEOUSLY CONTROLLING POINT BY POINT THE INTENSITY OF EACH OF A PAIR OF PRIMARY COLOR COMPONENTS IN A BEAM OF LIGHT IN RESPONSE TO RESPECTIVE ELECTRICAN SIGNALS COMPRISING: A LIGHT MODULATING MEDIUM, MEANS FOR DIRECTING SAID BEAM ON SAID LIGHT MODULATING MEDIUM, MEANS FOR SIMULTANEOUSLY PRODUCING TWO SETS OF DEFORMATION IN SAID MEDIUM, THE DEFORMATIONS IN EACH SET BEING ARRANGED IN UNIFORMLY SPACED SIMILARLY DIRECTED LINES TO FORM RESPECTIVE LIGHT DIFFRACTION GRATINGS, THE LINES IN EACH SET EXTENDING IN THE SAME DIRECTION, ONE OF SAID DIFFRACTION GRATINGS HAVING A LINE TO LINE SPACING SMALLER THAN THE OTHER OF SAID GRATINGS, MEANS FOR CONTROLLING THE AMPLITUDE OF THE LINES OF DEFORMATION OF SAID ONE GRATING IN RESPONSE TO THE ONE OF SAID ELECTRICAL SIGNALS CORRESPONDING TO THE ONE OF SAID COLOR COMPONENTS OF LONGER WAVELENGTHS, MEANS FOR CONTROLLING THE AMPLITUDE OF LINES OF DEFORMATION OF THE OTHER OF SAID GRATINGS IN RESPONSE TO THE OTHER OF SAID ELECTRICAL SIGNALS, A LIGHT MASK INCLUDING A SET OF TRANSPARENT SLOTS OF EQUAL WIDTH INTERLEAVED WITH A SET OF WIDE AND NARROW OPAQUE BARS, SAID NARROW OPAQUE BARS BEING OF APPRECIABLY LESS WIDTH THAN SAID WIDE OPAQUE BARS AND INTERLEAVED THEREWITH, EACH OF SAID SLOTS BEING SUCCESSIVELY POSITIONED IN A LINE ORTHOGONAL TO SAID LINES OF DEFORMATION, EACH OF SAID SLOTS BEING ORIENTED PARALLEL TO SAID LINES OF DEFORMATION AND DISPOSED IN THE PATH OF LIGHT COMING FROM SAID LIGHT MODULATING MEDIUM, MEANS FOR IMAGING LIGHT FROM SAID SOURCE THROUGH SAID LIGHT MODULATING MEDIUM ON SAID WIDE BARS IN THE ABSENCE OF DEFORMATION IN SAID MEDIUM.

Claim 2

A SYSTEM FOR SIMULTANEOUSLY CONTROLLING POINT BY POINT THE INTENSITY OF EACH OF A PAIR OF PRIMARY COLOR COMPONENTS IN A BEAM OF LIGHT IN RESPONSE TO RESPECTIVE ELECTRICAN SIGNALS COMPRISING: A LIGHT MODULATING MEDIUM, MEANS FOR DIRECTING SAID BEAM ON SAID LIGHT MODULATING MEDIUM, MEANS FOR SIMULTANEOUSLY PRODUCING TWO SETS OF DEFORMATION IN SAID MEDIUM, THE DEFORMATIONS IN EACH SET BEING ARRANGED IN UNIFORMLY SPACED SIMILARLY DIRECTED LINES TO FORM RESPECTIVE LIGHT DIFFRACTION GRATINGS, THE LINES IN EACH SET EXTENDING IN THE SAME DIRECTION, ONE OF SAID DIFFRACTION GRATINGS HAVING A LINE TO LINE SPACING SMALLER THAN THE OTHER OF SAID GRATINGS, MEANS FOR CONTROLLING THE AMPLITUDE OF THE LINES OF DEFORMATION OF SAID ONE GRATING IN RESPONSE TO THE ONE OF SAID ELECTRICAL SIGNALS CORRESPONDING TO THE ONE OF SAID COLOR COMPONENTS OF LONGER WAVELENGTHS, MEANS FOR CONTROLLING THE AMPLITUDE OF LINES OF DEFORMATION OF THE OTHER OF SAID GRATINGS IN RESPONSE TO THE OTHER OF SAID ELECTRICAL SIGNALS, A LIGHT MASK INCLUDING A SET OF TRANSPARENT SLOTS OF EQUAL WIDTH INTERLEAVED WITH A SET OF WIDE AND NARROW OPAQUE BARS, SAID NARROW OPAQUE BARS BEING OF APPRECIABLY LESS WIDTH THAN SAID WIDE OPAQUE BARS AND INTERLEAVED THEREWITH, EACH OF SAID SLOTS BEING SUCCESSIVELY POSITIONED IN A LINE ORTHOGONAL TO SAID LINES OF DEFORMATION, EACH OF SAID SLOTS BEING ORIENTED PARALLEL TO SAID LINES OF DEFORMATION AND DISPOSED IN THE PATH OF LIGHT COMING FROM SAID LIGHT MODULATING MEDIUM, MEANS FOR IMAGING LIGHT FROM SAID SOURCE THROUGH SAID LIGHT MODULATING MEDIUM ON SAID WIDE BARS IN THE ABSENCE OF DEFORMATION IN SAID MEDIUM.